Multiattack. The Wyrmbat makes two attacks: one with its bite and one with its claws, or two claws attacks.

Bite. Melee Weapon Attack: +6 to hit, reach 5 ft., one creature. Hit: 11 (2d6 + 4) piercing damage.

Claws. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) slashing damage.

Piercing Echolocation (Recharge 4-6). The Wyrmbat lets out an ear piercing screech, enough to disorient its enemies, and locate them. Each creature in a 15-foot-radius sphere centered on the Wyrmbat must make a Constitution saving throw. A creature takes 3d8 thunder damage on a failed save, or half as much damage on a successful one. A nonmagical object that isn’t being worn or carried also takes the damage if it’s in the spell’s area. Additionally, the screech allows the Wyrmbat to use echolocation to locate all enemies within a 30-foot-radius circle centered on itself, even if they are hidden.